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Testing of Large Diameter Fresnel Optics for Space Based Observations of Extensive Air ShowersThe JEM-EUSO mission will detect extensive air showers produced by extreme energy cosmic rays. It operates from the ISS looking down on Earth's night time atmosphere to detect the nitrogen fluorescence and Cherenkov produce by the charged particles in the EAS. The JEM-EUSO science objectives require a large field of view, sensitivity to energies below 50 EeV, and must fit within available ISS resources. The JEM-EUSO optic module uses three large diameter, thin plastic lenses with Fresnel surfaces to meet the instrument requirements. A bread-board model of the optic has been manufactured and has undergone preliminary tests. We report the results of optical performance tests and evaluate the present capability to manufacture these optical elements.
Document ID
20110015699
Acquisition Source
Marshall Space Flight Center
Document Type
Other
Authors
Adams, James H. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Christl, Mark J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Young, Roy M. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 25, 2013
Publication Date
August 11, 2011
Subject Category
Space Sciences (General)
Report/Patent Number
M11-0666
M11-0332
Meeting Information
Meeting: 32nd International Cosmic Ray Conference (ICRC)
Location: Beijing
Country: China
Start Date: August 11, 2011
End Date: August 18, 2011
Sponsors: Institute of High Energy Physics, Academia Sinica
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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